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What does the term 'defence in depth' refers to?

37. What does the term "defence in depth" refers to?

1. Relying on a single security measure for protection
2. Implementing multiple layers of security controls to mitigate risks
3. Prioritizing confidentiality over availability
4. Focusing solely on physical security measures

Answer: B) Implementing multiple layers of security controls to mitigate risks.

Explanation:

The concept of defense in depth is based on the principle that no single security measure can provide complete protection against all possible threats and vulnerabilities. By employing multiple layers, even if one layer is breached, other layers can still provide protection.